BC856W,135

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	PNP
Current - Collector (Ic) (Max):	100mA
Voltage - Collector Emitter Breakdown (Max):	65V
Vce Saturation (Max) @ Ib, Ic:	600mV @ 5mA, 100mA
Current - Collector Cutoff (Max):	15nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	125 @ 2mA, 5V
Power - Max:	200mW
Frequency - Transition:	100MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SOT-323-3
Base Part Number:	BC856

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Introduction to BC856W Transistor

The BC856W is a high-speed, low-noise NPN bipolar junction transistor (BJT). The BC856W is versatile and commonly used in wide range of both industrial and consumer electronic products such as amplifiers, oscillators, pre-amps, radios and more.

Structural Features of BC856W Transistor

The BC856W is a three-layer semiconductor device made from silicon wafers. It has two types of semiconductor layers: the P-type layer, which contains positive charges, and the N-type layer, which contains negative charges. The third layer, called the "base" is made of an insulating material and serves to control the flow of electric current between the P-type and N-type layers.The BC856W has an emitter-base voltage drop of 6 volts, a collector-base voltage drop of 8 volts and a base current of 200mA. The transistor is designed to handle up to 3 amps of collector current and 1 watt of power.

BC856W Transistor Configuration

The BC856W transistor comes in two different configurations, the NPN and PNP. In an NPN transistor configuration, the base is connected to the emitter, while in a PNP configuration, the base is connected to the collector. When the base is charged with a small amount of current (less than 200mA), a flow is created between the emitter and collector. This current flow is what allows the transistor to amplify or switch electrical signals.

BC856W Application Fields and Working Principle

Due to its versatility and high-speed performance, the BC856W is highly functional in a wide variety of applications. It can be used as an amplifier, an oscillator, or a switching device. As an amplifier, the BC856W increases the voltage or current of a signal. This amplification can be used in any number of circuits such as audio systems, radio, or computers. When used as an oscillator, the transistor creates a continuous waveform with a specific frequency. Oscillators have a range of applications, such as in quartz watches, radios, and surveillance systems. The BC856W can also be used as a switch. By controlling the base current, the transistor can be used to switch between two different power sources. This can be used in circuits where large amounts of power need to be switch quickly and efficiently.

Conclusion

The BC856W transistor is a versatile, high-speed, low-noise NPN bipolar junction transistor. It is useful in a wide range of applications such as amplifiers, oscillators, pre-amps, radios, and as a switch. It is easy to configure and install, and is a popular choice for any project.

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